Oil excluding ring



atented Apr. 7, 1936 v UNITED STATES PATENT OFFICE UllL EXCLUDING RING Application November 18, 1933, Serial No. 698,585

1 Claim.

This invention relates to oil excluding rings and has for an object to provide a ring of the type which embraces a rotating or reciprocating shaft to prevent the passage or seepage of oil.

A further object of the invention is to provide an oil excluding ring which may be economically manufactured, and which will operate to the maximum efiiciency.

The invention, therefore, comprises a shell into which is inserted a packing element having a flange which is clamped within the shell and a section which forms a sleeve surrounding the shaft with a coiled spring engaging upon the exterior of the sleeve to hold it in oil excluding engagement with the shaft, and with improved means for putting together the shell and retaining parts and maintaining such parts in a unitary structure.

In the drawing,

Figure 1 is a view of one embodiment of the invention shown mounted in position upon a shaft,

Figure 2 is a perspective View, parts being broken away to show the internal construction,

Figure 3 is a view in side elevation of the type shown at Figure 1 or 2,

Figure 4 is a view partly in edge elevation and partly in diametrical section showing a slightly modified type, and

Figure 5 is a view partly in edge elevation and partly in diametrical section showing still a further modification.

Like characters of reference indicate corresponding parts throughout the several views.

The invention is adapted to be associated with a shaft either rotating or reciprocating, as indicated at A in Figure 1. While that figure indicates-the shaft as rotating, it is to be understood that it will operate as efiiciently with the reciprocating shaft. It comprises a shell lll having a series of indentations H adjacent to the edge thereof, and a second series of indentations l2 spaced from the indentations ll to provide space for receiving and positioning a plane annular washer l3.

An annular angle member l4 engages against the opposite sides of the indentations l2. A packing member I5 is seated in the angle member I l, and is clamped therein by peening down the edge of the shell as at l6. At this position the packing member forms a relatively plane annular flange, which is clamped as above noted, and is extended by a sleeve [5, which engages against the exterior of the shaft A, and is held in oil excluding relation by helical spring ll, which bears against the exterior of said sleeve, and is held in position by the washer ll.

In this type, a flange it is also provided with perforations it by which the device may be rigidly secured to any appropriate body. The flange l8, however, is largely an auxiliary and may be wholly omitted, as shown at Figures 4 and 5.

At Figure 4, for instance, the shell til is provided with a series of indentations M which are formed intermediate the edges and against this series of indentations an angle member 22 engages with the packing member l5 clamped between said angle member and the washer it which, in turn, is held by the edge it peened over upon such washer. ployed for similarly holding the sleeve of the packing member against the shaft. As shown at Figure 5, the indentations it are preferably inclined forming a shoulder against which'the annular angle member 25 engages with the packing member l5 clamped against angle member by the annular flange 2B of the shell. In this instance, the edge of the shell is peened over at it, against the washer Tl. Of course, the usual spring ll is employed for holding theisleeve of the packing member in operative relation.

In every embodiment the packing member is held by an angle annulus which in turn abuts against an indentation extending into the cylinder of the shell, and the said packing member is further held by engagement directly or indirectly with the side of the shell which forms an annular flange.

I claim:

An oil excluding ring comprising a substantially cylindrical shell having indentations in its exterior forming protuberances in the interior of said cylinder, said indentations being formed in two circular series about said shell, whereby the protuberances are spaced apart in circumferential series, a washer mounted between said series of protuberances, an angle annulus bearing against one series of protuberances, a packing member formed as a relatively plane annular flange and as a relatively plane cylindrical sleeve, said annular flange being seated in the angle annulus, and an edge of said shell being turned down to clamp the packing member within said angle annulus.

MARTIN D. FITZGERALD.

A similar spring ll'l is em- 

